这是一个验证贴，因为社区文档是错误的。

先说结论

Flink1.15仅支持ZooKeeper3.5/3.6，不再支持3.4。FLINK-25146 Drop support for Zookeeper 3.4

社区文档

其中的ZooKeeper Versions描述默认使用3.4，可以自行调整为3.5。从文档上来看自1.11版本就添加了这段描述，到目前最新稳定版本(1.16.0)依然是这么描述的。但是实际我们在flink-1.15.0/lib目录中只看到了flink-shaded-zookeeper-3.5.9.jar，在opt目录中看到了flink-shaded-zookeeper-3.6.3.jar，即默认使用3.5版本，并在opt目录中放置了3.6版本。

其实在1.15的 ReleaseNote 中明确写了，不再支持3.4，只是还是有点不死心，做了如下的验证。

Release notes - Flink 1.15

Drop support for Zookeeper 3.4 #

FLINK-25146 #

Support for using Zookeeper 3.4 for HA has been dropped. Users relying on Zookeeper need to upgrade to 3.5/3.6. By default Flink now uses a Zookeeper 3.5 client.

验证一

那么我们是否可以将3.4的版本（flink-1.13.3/lib/flink-shaded-zookeeper-3.4.14.jar）放置到flink-1.15.3/lib目录中，在1.15版本中使用3.4版本呢？

不能

如果我们这么做，将会遇到 java.lang.ClassNotFoundException: org.apache.flink.shaded.curator5.org.apache.curator.framework.api.ACLProvider ，完整堆栈如下：

 1 2022-12-08 18:18:05,693 INFO  org.apache.flink.runtime.rpc.akka.AkkaRpcService             [] - Stopping Akka RPC service.

 2 2022-12-08 18:18:05,734 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Shutting down remote daemon.

 3 2022-12-08 18:18:05,736 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Remote daemon shut down; proceeding with flushing remote transports.

 4 2022-12-08 18:18:05,758 INFO  akka.remote.RemoteActorRefProvider$RemotingTerminator        [] - Remoting shut down.

 5 2022-12-08 18:18:05,782 INFO  org.apache.flink.runtime.rpc.akka.AkkaRpcService             [] - Stopped Akka RPC service.

 6 2022-12-08 18:18:05,782 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Could not start cluster entrypoint YarnApplicationClusterEntryPoint.

 7 org.apache.flink.runtime.entrypoint.ClusterEntrypointException: Failed to initialize the cluster entrypoint YarnApplicationClusterEntryPoint.

 8     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:250) ~[flink-dist-1.15.3.jar:1.15.3]

 9     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:711) [flink-dist-1.15.3.jar:1.15.3]

10     at org.apache.flink.yarn.entrypoint.YarnApplicationClusterEntryPoint.main(YarnApplicationClusterEntryPoint.java:112) [flink-dist-1.15.3.jar:1.15.3]

11 Caused by: java.lang.NoClassDefFoundError: org/apache/flink/shaded/curator5/org/apache/curator/framework/api/ACLProvider

12     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:90) ~[flink-dist-1.15.3.jar:1.15.3]

13     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-dist-1.15.3.jar:1.15.3]

14     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-dist-1.15.3.jar:1.15.3]

15     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-dist-1.15.3.jar:1.15.3]

16     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-dist-1.15.3.jar:1.15.3]

17     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-dist-1.15.3.jar:1.15.3]

18     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

19     at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_202]

20     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) ~[hadoop-common-3.0.0-cdh6.3.2.jar:?]

21     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) ~[flink-dist-1.15.3.jar:1.15.3]

22     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) ~[flink-dist-1.15.3.jar:1.15.3]

23     ... 2 more

24 Caused by: java.lang.ClassNotFoundException: org.apache.flink.shaded.curator5.org.apache.curator.framework.api.ACLProvider

25     at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[?:1.8.0_202]

26     at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_202]

27     at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[?:1.8.0_202]

28     at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_202]

29     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:90) ~[flink-dist-1.15.3.jar:1.15.3]

30     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-dist-1.15.3.jar:1.15.3]

31     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-dist-1.15.3.jar:1.15.3]

32     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-dist-1.15.3.jar:1.15.3]

33     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-dist-1.15.3.jar:1.15.3]

34     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-dist-1.15.3.jar:1.15.3]

35     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

36     at javax.security.auth.Subject.doAs(Subject.java:422) ~[?:1.8.0_202]

37     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) ~[hadoop-common-3.0.0-cdh6.3.2.jar:?]

38     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) ~[flink-dist-1.15.3.jar:1.15.3]

39     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) ~[flink-dist-1.15.3.jar:1.15.3]

40     ... 2 more

验证二

如果使用3.5的客户端访问3.4版本服务端，将会提示 org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for 异常，完整堆栈如下：

 1 2022-12-08 15:10:14,935 ERROR org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Fatal error occurred in the cluster entrypoint.

 2 org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException$UnimplementedException: KeeperErrorCode = Unimplemented for /flink/jm_ha_metadata/application_1666841155139_0173

 3     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException.create(KeeperException.java:106) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 4     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.KeeperException.create(KeeperException.java:54) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 5     at org.apache.flink.shaded.zookeeper3.org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:1538) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 6     at org.apache.flink.shaded.curator5.org.apache.curator.utils.ZKPaths.mkdirs(ZKPaths.java:351) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 7     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl$1.call(NamespaceImpl.java:90) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 8     at org.apache.flink.shaded.curator5.org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:93) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

 9     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl.fixForNamespace(NamespaceImpl.java:83) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

10     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.NamespaceImpl.newNamespaceAwareEnsurePath(NamespaceImpl.java:109) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

11     at org.apache.flink.shaded.curator5.org.apache.curator.framework.imps.CuratorFrameworkImpl.newNamespaceAwareEnsurePath(CuratorFrameworkImpl.java:618) ~[flink-shaded-zookeeper-3-3.5.9-15.0.jar:3.5.9-15.0]

12     at org.apache.flink.runtime.util.ZooKeeperUtils.useNamespaceAndEnsurePath(ZooKeeperUtils.java:729) ~[flink-runtime-1.15.2.jar:1.15.2]

13     at org.apache.flink.runtime.highavailability.zookeeper.ZooKeeperMultipleComponentLeaderElectionHaServices.<init>(ZooKeeperMultipleComponentLeaderElectionHaServices.java:85) ~[flink-runtime-1.15.2.jar:1.15.2]

14     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createZooKeeperHaServices(HighAvailabilityServicesUtils.java:96) ~[flink-runtime-1.15.2.jar:1.15.2]

15     at org.apache.flink.runtime.highavailability.HighAvailabilityServicesUtils.createHighAvailabilityServices(HighAvailabilityServicesUtils.java:140) ~[flink-runtime-1.15.2.jar:1.15.2]

16     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.createHaServices(ClusterEntrypoint.java:427) ~[flink-runtime-1.15.2.jar:1.15.2]

17     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.initializeServices(ClusterEntrypoint.java:376) ~[flink-runtime-1.15.2.jar:1.15.2]

18     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runCluster(ClusterEntrypoint.java:277) ~[flink-runtime-1.15.2.jar:1.15.2]

19     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.lambda$startCluster$1(ClusterEntrypoint.java:227) ~[flink-runtime-1.15.2.jar:1.15.2]

20     at java.security.AccessController.doPrivileged(Native Method) ~[?:1.8.0_202]

21     at javax.security.auth.Subject.doAs(Subject.java:422) [?:1.8.0_202]

22     at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1875) [hadoop-common-3.0.0-cdh6.3.2.jar:?]

23     at org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41) [flink-runtime-1.15.2.jar:1.15.2]

24     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.startCluster(ClusterEntrypoint.java:224) [flink-runtime-1.15.2.jar:1.15.2]

25     at org.apache.flink.runtime.entrypoint.ClusterEntrypoint.runClusterEntrypoint(ClusterEntrypoint.java:711) [flink-runtime-1.15.2.jar:1.15.2]

26     at org.apache.flink.yarn.entrypoint.YarnApplicationClusterEntryPoint.main(YarnApplicationClusterEntryPoint.java:112) [flink-dist-1.15.3.jar:1.15.3]

27 2022-12-08 15:10:14,943 INFO  org.apache.flink.runtime.entrypoint.ClusterEntrypoint        [] - Shutting YarnApplicationClusterEntryPoint down with application status UNKNOWN. Diagnostics Cluster entrypoint has been closed externally..

参考资料：

  1. FLINK-25146Drop support for Zookeeper 3.4

  2. ZooKeeper Version 3.4.x Compatibility

  3. https://nightlies.apache.org/flink/flink-docs-release-1.16/release-notes/flink-1.15/

Flink1.15仅支持ZooKeeper3.5/3.6的更多相关文章

  1. tomcat 6 不支持jsf2.2，仅支持jsf2.0及以下版本

    tomcat 6 不支持jsf2.2,仅支持jsf2.0及以下版本 安装tomcat8即可.

  2. 无法将类型“System.Nullable`1”强制转换为类型“System.Object”。LINQ to Entities 仅支持强制转换 EDM 基元或枚举类型。

    在一个项目中使用LINQ和EF时出现了题目所示的异常,搜索了很多资料都找不到解决办法,主要是因为EF方面的知识欠缺. 先将情况记录如下,以供以后参考. 查询主要设计两张表,由外键关联: 在进行下面的查 ...

  3. Entity FreamWork 无法创建“System.Object”类型的常量值。此上下文仅支持基元类型或枚举类型错误解决

    Entity FreamWork 无法创建“System.Object”类型的常量值.此上下文仅支持基元类型或枚举类型错误解决: 最近在开发中把我原来抄的架构里面的主键由固定的Guid改成了可以泛型指 ...

  4. WCF调试异常信息：ServiceHost 仅支持类服务类型

    "/CommonHelpServices"应用程序中的server错误. ServiceHost 仅支持类服务类型. 说明: 运行当前 Web 请求期间,出现未经处理的异常. 请检 ...

  5. DNS同时占用UDP和TCP端口53——传输数据超过512时候用tcp，DNS服务器可以配置仅支持UDP查询包

    DNS同时占用UDP和TCP端口53是公认的,这种单个应用协议同时使用两种传输协议的情况在TCP/IP栈也算是个另类.但很少有人知道DNS分别在什么情况下使用这两种协议. 先简单介绍下TCP与UDP. ...

  6. IDHTTP-HTTPS通讯方法（Indy10.2.3之前仅支持OpenSSL的0.9.8以前的版本）

    加载https的站点页面内容的时候记得在窗体上加上“IdSSLIOHandlerSocketOpenSSL1” 以及idhttp里面IOHandler为“IdSSLIOHandlerSocketOpe ...

  7. 导入数据任务（id:373985）异常， 错误信息：解析导入文件错误，请检查导入文件内容，仅支持导入json格式数据及excel文件

    小程序导入,别人导出的数据库json文件,错误信息如下: 导入数据库失败, Error: Poll error, 导入数据任务(id:373985)异常,错误信息:解析导入文件错误,请检查导入文件内容 ...

  8. nRF52832 串口仅支持偶检验

    通常在使用串口时,我们习惯是不进行奇偶检验(even/odd parity),让应用层的软件自己检验即可.如果非要硬件校验时,以下是关于NRF52832的奇偶检验配置: // 52832 仅支持 ev ...

  9. 无法创建“System.Object”类型的常量值。此上下文仅支持基元类型或枚举类型

    Entity FreamWork 无法创建“System.Object”类型的常量值.此上下文仅支持基元类型或枚举类型错误解决: 最近在开发中把我原来抄的架构里面的主键由固定的Guid改成了可以泛型指 ...

  10. java8+tomcate8仅支持TLSv1.2

    1.编辑$tomcat_home/conf/server.xml <Connector protocol="org.apache.coyote.http11.Http11NioProt ...

随机推荐

  1. Python基础部分：7、 垃圾回收机制和流程控制

    目录 一.垃圾回收机制 1.引用计数 2.标记清除 3.分类代收 二.流程控制 1.理论 2.必备知识 3.分支结构 4.循环结构 一.垃圾回收机制 垃圾回收机制,简称GC,是python解释器自带的 ...

  2. Python基础部分：1、typora软件和对计算机的认识

    目录 一.typora软件 1.安装 2.markdown语法 二.计算机的本质 1.进制数 三.计算机五大组成部分概要 1.控制器 2.运算器 3.存储器 4.输入设备 5.输出设备 一.typor ...

  3. 有依赖的背包问题（Acwing 10）

    1 # include<iostream> 2 # include<cstring> 3 # include<algorithm> 4 using namespac ...

  4. Archlinux安装Picgo配置Typora

    Typora堪称为markdown界的老大哥,其大名我们多有耳闻,所见即所的就是他的特点.但是在日常使用中,也经常会碰到一些特别的需求,比如:希望图片能够上传到云端. 怎么将markdown即时粘贴的 ...

  5. 嵌入式-C语言基础：函数指针

    定义函数地址:如果在程序中定义了一个函数,那么在编译的时候,编译系统为函数代码分配一段存储空间,这段存储空间的起始地址(也叫入口地址)称为这个函数的地址. 和数组一样,数组名代表地址,而函数名表示函数 ...

  6. C#读写锁ReaderWriteLockSlim的使用

    C#读写锁ReaderWriterLockSlim的使用 using System; using System.Collections.Generic; using System.Linq; usin ...

  7. 【DL论文精读笔记】Object Detection in 20 Y ears: A Survey目标检测综述

    目标检测20年综述(2019) 摘要 Abstract 该综述涵盖了400篇目标检测文章,时间跨度将近四分之一世纪.包括目标检测历史上的里程碑检测器.数据集.衡量指标.基本搭建模块.加速技术,最近的s ...

  8. (C++) C++ new operator, operator new 及 placement new （待整理）

    https://blog.csdn.net/songthin/article/details/1703966 https://cplusplus.com/reference/new/operator ...

  9. ubuntu 22.04安装多个gcc

    sudo apt install gcc-9 g++-9 sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 90 - ...

  10. ArcObjects SDK开发 004 如何学习好ArcObjects SDK开发

    1.基于Arcobjects SDK可以做什么 基于Arcobjects SDK开发,大部分情况下就是做桌面GIS应用程序.AO写的代码是不能直接在Web服务上运行的,但如果你前端是JS,需要后端处理 ...